[leetcode] Missing Number系列 今天来总结一下Missing Number一系列问题 1、Find All Numbers Disappeared in an Array Given an array of integers where 1 ≤ a[i] ≤n(n= size of array), some elements appear twice and others appear once. Find all the elements of [1,n] inclusive that do not...
Given an array containingndistinct numbers taken from0, 1, 2, ..., n, find the one that is missing from the array. For example, Givennums=[0, 1, 3]return2. Note: Your algorithm should run in linear runtime complexity. Could you implement it using only constant extra space complexity?
LeetCode之Missing Number 1、题目 Given an array containing n distinct numbers taken from0, 1, 2, ..., n, find the one that is missing from the array. For example, Given nums =[0, 1, 3]return2. Givennums=[0]return1 2、代码实现 public class Solution { public int missingNumber(int...
这就是 LeetCode 136 - Single Number 这题,所以我们可以采用相同的异或解法。 因为a ^ a = 0 ,所以出现两次的数异或后会相互抵消。 那么求所有数的异或和即可,最后剩余的就是只出现一次的数。 时间复杂度:O(n) 需要遍历处理全部 O(n) 个数 空间复杂度:O(1) 只需要维护常数个额外变量即可 代码(Python...
题目链接:https://leetcode.com/problems/missing-number/ 题目: n distinct numbers taken from0, 1, 2, ..., n, find the one that is missing from the array. For example, Given nums =[0, 1, 3]return2. Note: Your algorithm should run in linear runtime complexity. Could you implement ...
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Missing Number Given an array containing n distinct numbers taken from 0, 1, 2, ..., n, find the one that is missing from the array. For example, Given nums = [0, 1, 3] return 2. Note: Your algorithm should run in linear runtime complexity. Could you implement it using only con...
简介:LeetCode之Missing Number 1、题目 Given an array containing n distinct numbers taken from 0, 1, 2, ..., n, find the one that is missing from the array. For example, Given nums = [0, 1, 3] return 2. Given nums = [0] return 1 ...
【摘要】 Leetcode 题目解析之 Missing Number Given an array containing n distinct numbers taken from 0, 1, 2, …, n, find the one that is missing from the array. For example, Given nums = 0, 1, 3 return 2. Note: Your algorithm should run in linear runtime complexity. Could you im...